These are the SI's from last yr. Given RYC is running the nats again and the schedule is the same this could be a good starting point. I have no idea whether they will use the same courses again tho.

https://www.jibeset.net/racedoc/RYC_T002499773si.pdf?t=1375306708...

:: Can anyone point me to a link that describes the
:: distance race course for the Nationals on Friday, Aug.
:: 23? Thanks.